Odd case of spits & sputters - Dodge Cummins Diesel Forum
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post #1 of 8 (permalink) Old 09-19-2019, 11:53 PM Thread Starter
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So when its below 80⁰ my truck likes to spit and sputter only after start up when i give it fuel. I can let it idle for 5 min then give it some pedal and it sputters and blows whiteish smoke. Put in first and get on, spits and sputters, then i shift to 2nd and pull 20+ lbs boost. Next 1st gear take off it runs like a top. Wont do it again till after ive shut it down for the night. I dont understand because I have let it idle for 10 minutes and my egts are 300 and it does it. Generally 80⁰ and higher it wont period. Read around online but only have come across posts where its very consistent. I know my motor is in def need of a rebuild do to retarded kid in past trying to run a massive turbo, no fuel plate, marine injectors and 26⁰ timing. Tons of blowby for sure if that might be the reason.


1995 2500 ctd std cab 5 speed 4x4. 18o, 20% over fuel plate, 3k gsk, s300 turbo, arp studs, 3 piece exhaust manifold.
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post #2 of 8 (permalink) Old 09-20-2019, 12:33 AM
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Air getting into fuel lines. Suction lines, fuel heater, strainer........

95 3500 auto, bhaf, 4k, kdp, gauges, air bags, fuel htr delete, 33"s, dually spacers, 4.10 lim slip, 2" level, silicone hoses, tps delete, tcc switch
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post #3 of 8 (permalink) Old 09-20-2019, 06:36 AM
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What is your fuel pressure at idle and free reved to 2000 RPM? Concerning the "need of a rebuild" how many miles between having to add a qt of oil?

97 3500, 2 WD, G56, slightly bombed, 1.3 million miles. Started the second million on 8/24/13
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post #4 of 8 (permalink) Old 09-20-2019, 11:06 AM Thread Starter
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What is your fuel pressure at idle and free reved to 2000 RPM? Concerning the "need of a rebuild" how many miles between having to add a qt of oil?
Couldnt tell you that. I put a new cummins lift pump in last month and the injection pump was rebuilt last summer, 10k miles on it.

As of rebuild its 16"@2800rpm no load. That depends on the rpm. If im cruising at 2500 rpm or higher i can prolly go 100 miles before i loose a quart. However the vacuum pump leaks and gear housing itself.

1995 2500 ctd std cab 5 speed 4x4. 18o, 20% over fuel plate, 3k gsk, s300 turbo, arp studs, 3 piece exhaust manifold.
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post #5 of 8 (permalink) Old 09-20-2019, 11:08 AM Thread Starter
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Air getting into fuel lines. Suction lines, fuel heater, strainer........
No fuel leaks

1995 2500 ctd std cab 5 speed 4x4. 18o, 20% over fuel plate, 3k gsk, s300 turbo, arp studs, 3 piece exhaust manifold.
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post #6 of 8 (permalink) Old 09-20-2019, 05:33 PM
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Without a fuel pressure gauge the troubleshooting regiment consists of throwing parts at it until something sticks. You could try an over flow valve. Air leaks do not leak fuel. https://www.cumminsforum.com/forum/9...m-writeup.html

97 3500, 2 WD, G56, slightly bombed, 1.3 million miles. Started the second million on 8/24/13
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post #7 of 8 (permalink) Old 09-20-2019, 07:26 PM
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Quote:
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Air getting into fuel lines. Suction lines, fuel heater, strainer........
No fuel leaks
Suction lines that suck air through cracks under stress don't leak generally.

95 3500 auto, bhaf, 4k, kdp, gauges, air bags, fuel htr delete, 33"s, dually spacers, 4.10 lim slip, 2" level, silicone hoses, tps delete, tcc switch
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post #8 of 8 (permalink) Old 09-21-2019, 01:01 PM Thread Starter
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Without a fuel pressure gauge the troubleshooting regiment consists of throwing parts at it until something sticks. You could try an over flow valve. Air leaks do not leak fuel. https://www.cumminsforum.com/forum/9...m-writeup.html
Yea thats true, the return line was leaking so I replaced that when i did the lift pump. However the fuel pressure gauge i have in my truck isnt hooked up, i could try and use that if i can get the parts this weekend.

I did a really good inspection this morning and found some issues. Noticed the drain is wet, its a cheapy so i bought one from dodge. Also the #6 injector looks like it might be very slightly seeping. One i fix that and get all the air out I'll check it in the colder morning temps tomorrow and see how it acts. I'll also get a video and maybe by the smoke it blows and the sound someone here will know. Wish i could find someone close to me to just listen to this engine, i came from a 2015 so im not sure if my 00 24v was the same as this 12v and im over thinking something or its definitely has an issue.

1995 2500 ctd std cab 5 speed 4x4. 18o, 20% over fuel plate, 3k gsk, s300 turbo, arp studs, 3 piece exhaust manifold.
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